Cross-slide of a combination tool machine, in particular planing and grinding machine

ABSTRACT

A cross-slide of a combination tool machine with separate parallel slideways for multiple supports of different working units.

Unlted States Patent 1151 3, Ladewig Apr. 4, 1972 [54] CROSS-SLIDE OF ACOMBINATION [56] References Cited TOOL MACHINE, IN PARTICULAR PLANINGAND GRINDING MACHINE UNITED STATES PATENTS [72] Inventor: Gerhard g, gyy Gap 2,050,295 8/1936 Edwards ..5l/5

y FOREIGN PATENTS OR APPLICATIONS i731 Assigneei werkreugmaschinenfabrikWald'ich 716,552 5/1931 France ..51/5 9 COburg am Bayer, Germany 123,1372/1918 Great Britain ...sI/s [22] Filed: Feb. 24, 1970 677,797 7/1929France ..5l/5 [21] APPI'NO': 13671 Primary Examiner-William R. ArmstrongAttorney-Woodhams, Blanchard and Flynn [30] Foreign Application PriorityData Mar. 20, 1969 Germany ..G 69 11 232 [57] ABSTRACT A cross-slide ofa combination tool machine with separate [52] (1.5. CI ..51/5, 90/16,90/34 parallel slideways for multiple supports of different working 51Int. Cl ..B24b 7/00 units, [58] Field ofSearch ..51/5, 3; 90/15, 16, 34

3 Claims, 3 Drawing Figures the aforementioned combination tool machineswhich are equipped, for example for milling and planing, for planing andgrinding, or also for planing, grinding and milling.

Tool machines are known in which the cross-slide is equipped withslideways with supports for different working units. All supports, forexample, both the planing supports and the grinding supports, are insuch machines arranged on the same slideways of the cross-slide. Thisrequired compromises in the construction of both supports and thedifferent guide elements of the planing and grinding supports were insuch machines located disadvantageously on the same slideway. Theplaning supports have slide guides which are required for receiving thehigh pulling forces, while the grinding supports, for the purpose of aprecise feed in the micrometer zone, are guided by roller elements toreduce friction. The different guide path in the working zone of theindividual supports results in a different wear of the slideways on thecross-slide which influences particularly the exactness and achievablesurface quality during grinding. In addition, compromises usually had tobe made in the design of the cross-slide in reference to its rigidityetc.

The basic purpose of the invention is to place the supports on thecross-slide of a combination tool machine, in particular a planing andgrinding machine, in such a manner that the cross-slide and the supportscan be constructed at an optimum with reference to structure and guideelements and the different wear on the guide elements cannotreciprocally negatively influence the guiding of the planing andgrinding supports.

To attain this purpose, the invention provides that separate slidewaysare provided on the cross-slide for the planing supports and for thegrinding supports.

By arranging separate slideways for the planing and grinding supports itis possible to choose their distance and to construct them in such amanner as is required by the optimum structure of the supports and as isdesirable for the guiding and supporting of the supports. Particularlyin using planing and grinding supports, the invention has considerableadvantages because their requirements with reference to support andexactness of the guiding differ considerably from one another. A greaterwear of the guide elements of the planing supports does not influencethe guiding of the grinding supports.

One exemplary embodiment of the invention is illustrated in the drawingsand will be described more in detail hereinafter.

in the drawings:

F IG. 1 is a front-elevational view of a section of a combination toolmachine with the cross-slide according to the invention and planing andgrinding supports arranged on said crossslide;

FIG. 2 is a cross-sectional view of the cross-slide with the grindingsupport lower slide; and

FIG. 3 is a cross section of the cross-slide with a planing supportlower slide.

The combination tool machine illustrated in the drawings has two machinecolumns and a cross-slide 2 at which two planing supports and onegrinding support are provided. A planing support consists, illustratedin a simplified manner, of a lower slide 3, an upper slide 4 and a toolreceiver 5. A grinding support consists of a lower slide 6, an upperslide 7 and a grinding spindle 8.

FIG. 2 illustrates particularly the suspension of the grinding support 6on the cross-slide 2. The lower slide 6 is guided on the cross-slide 2over four slideways 9, 10a, ll, 12. The

slideway 9 is provided on the back of the guide bar 15 which is securedto the upper portion of the cross-slide 2. The remaining slideways 10all, 12 are provided on the guidebar 16 which is secured to the lowerportion of the cross-slide 2 and are driven over the lateral slideways 9and 11. Roller elements 13 are secured to the lower slide 6. Thegrinding support is supported in the vertical direction through a bridge17 which is secured to the lower slide 6 by means of a strip 14 on theslideway 10a. The bar 18 which is fixedly connected to the lower slide 6and the slideway l2 prevents a forward tipping of the grinding support.

The lateral movement of the grinding support is caused by the rotationdrive spindle 19 which is in meshing engagement with the nut 20 securedto the lower slide 6.

FIG. 3 illustrates the suspension of a planing support 3 on thecross-slide 2. The lower slide 3 slides over the slideways 21, 22, 23,24, 25, 10b on the cross-slide 2. The slideways 2], 22, 23 are providedon a T-shaped carrier whereby a forward tipping of the lower slide 3 isprevented by the bar 26. The lower portion of the lower slide 3 issupported on the dovetailed slideway 24 and 25 which, together with theslideways 10a, 11 and 12 for the grinding support, is provided on thecommon guide bar 16. The slideways 10a, 11, 12 are provided one each atthe upper, front and back side and the side 25 of the dovetailedslideway 24, 25 is offset from but parallel to the front side 11 and theside 24 is inclined between the front side 1 l and offset side 25. Thesupport in the vertical direction is accomplished through a bridge 31secured to the lower slide 3 by means of the gib strips 27 and 28 on theslideways 23 and 10b.

The lateral drive of the two planing supports of the illustrated planingand grinding machine is accomplished through the drive spindles 29. Theshaft 30 effects a vertical adjustment of the upper slide 4 on theplaning supports. The drive spindles 29, 19 for the planing supports andthe grinding support, respectively, are each arranged between theirslideways near the action line of the resultant of their frictionresistance forces.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as follows:

1. In a cross-slide of a combined tool machine having parallel slidewaysfor multiple supports for different working units, in particular planingand grinding units, the combination comprising:

first slideway means on said cross-slide for one of said multiplesupports, said first slideway means including a first guide portionlocated adjacent the lower edge of said cross-slide;

second slideway means on said cross-slide for the other of said multiplesupports, said second slideway means including a second guide portionlocated adjacent said lower edge of said cross-slide; said first guideportion and said second guide portion being arranged on a common guiderail.

2. Cross-slide according to claim I, wherein said first slideway meansare arranged on the lower half of said crossslide.

3. Cross-slide according to claim 1, wherein said second guide portionon said common guide rail comprises a first slideway on the uppersurface of said guide rail, a second slideway on the front surface ofsaid guide rail and a third slideway on the rear surface of said guiderail; and

wherein said first guide portion on said common guide rail comprises afourth slideway on the upper surface of said guide rail adjacent saidfirst slideway and a dovetailed slideway including a first surfaceoffset and parallel to said second slideway and a second inclinedsurface connecting said second slideway to said first surface.

1. In a cross-slide of a combined tool machine having parallel slidewaysfor multiple supports for different working units, in particular planingand grinding units, the combination comprising: first slideway means onsaid cross-slide for one of said multiple supports, said first slidewaymeans including a first guide portion located adjacent the lower edge ofsaid crossslide; second slideway means on said cross-slide for the otherof said multiple supports, said second slideway means including a secondguide portion located adjacent said lower edge of said cross-slide; saidfirst guide portion and said second guide portion being arranged on acommon guide rail.
 2. Cross-slide according to claim 1, wherein saidfirst slideway means are arranged on the lower half of said cross-slide.3. Cross-slide according to claim 1, wherein said second Guide portionon said common guide rail comprises a first slideway on the uppersurface of said guide rail, a second slideway on the front surface ofsaid guide rail and a third slideway on the rear surface of said guiderail; and wherein said first guide portion on said common guide railcomprises a fourth slideway on the upper surface of said guide railadjacent said first slideway and a dovetailed slideway including a firstsurface offset and parallel to said second slideway and a secondinclined surface connecting said second slideway to said first surface.